The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 2006
Filed:
Oct. 15, 2004
Takumi Okaue, Kanagawa, JP;
Yoshio Kondo, Chiba, JP;
Takumi Okaue, Kanagawa, JP;
Yoshio Kondo, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
The object of the present invention is to enable to prevent an erroneous erase of a data stored or writing another data on the data as well as to enable to easily switch an erroneous erase prevention switch. A command generatorupon reception of a register instruction for checking a state of a memory cardreceived via an S/P & P/S sequencer, sets a state of an erroneous erase prevention switchin a register and transmits this register content via the S/P & P/S sequnecerto a host computer. According to the register content from the memory card, the host computer decides whether a write protect is ON and executes a write inhibit processing when the write protect is ON.